Question:
By running at a speed of 49 km/h how much distance a car will cover in 5 second?
Correct Answer
68.05 meter
Solution And Explanation
Solution
Given,
Speed = 49 km/h
Time = 5 second
Thus, distance = ?
Here the speed is given in the kilometer per hour while the time is in the second. So, for the ease of calculation, the speed should be converted into meter per second.
Conversion of the speed from kilometer per hour to meter per second
To convert kilometer per hour, the speed is multiplied by 5/18
Therefore, 49 km/h = 49 × 5/18 m/s
= 49 × 5/18 m/s
= 245/18 = 13.61 m/s
Thus, speed = 13.61 m/s
Calculation of distance using formula
Formula to calculate distance when speed and time are given
Distance = Speed × Time
⇒ Distance = 13.61 m/s × 5 s = 68.05 m
Thus, distance = 68.05 meter Answer
Calculation of distance using Unitary Method
∵ In 1 second the distance covered = 13.61 meter
∴ In 5 second, the distance covered = 13.61 m × 5 = meter
Thus, distance = 68.05 meter Answer
Similar Questions
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(2) By running at a speed of 22 km/h how much distance a car will cover in 5 second?
(3) By running at a speed of 37 km/h how much distance a motor bike will cover in 8 second?
(4) At a certain speed a scooty covers a distance of 88 km in 4 hours. How much distance will it cover in 5 hour?
(5) Find the distance covered by a cyclist in 21 hours if it covers a distance of 54 km in 11 hours.
(6) By running at a speed of 27 km/h how much distance a scooty will cover in 7 second?
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(8) By running at a speed of 21 km/h how much distance an athlete will cover in 10 second?
(9) Find the distance covered by a bus in 24 hours if it covers a distance of 84 km in 14 hours.
(10) Find the distance covered by a bus in 24 hours if it covers a distance of 100 km in 14 hours.